Exxon Mobil Corp. defended its contract with tiny Guyana as the oil major pushes to speed up production from the world’s biggest deep-water find in a decade. There’s no need to renegotiate the deal because it was agreed only two years ago with several concessions to the government, Erik Oswald, Exxon’s vice president for exploration in the Americas, said in an interview. The agreement was described as “favorable” to Exxon compared with global norms by the International Monetary Fund. SourceWe can expect some upside due to stochastics. $XOM, Exxon Mobil Corporation / W